Transcription of Method 1664, Revision B: n-Hexane Extractable Material ...
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Method 1664, Revision B: n-Hexane Extractable Material ...
United States Office of Water Environmental Protection Agency (4303) February 2010. Method 1664, Revision B: n- hexane Extractable Material (HEM; Oil and Grease) and Silica Gel Treated n- hexane Extractable Material (SGT-HEM; Non-polar Material ) by Extraction and Gravimetry February 2010. Environmental Protection Agency Office of Water (4303T). 1200 Pennsylvania Avenue, NW. Washington, DC 20460. EPA-821-R-10-001. Method 1664, Revision B. Acknowledgments Revision B of this Method was prepared by the Engineering and Analysis Division within EPA's Office of Water. EPA gratefully acknowledges assistance from DynCorp Information and Enterprise Technology in the preparation of the earlier versions. Additionally, EPA gratefully acknowledges Xenosep Technologies for their comments and review.
The term “n-Hexane Extractable Material (HEM; Oil and Grease)” reflects the material extracted by n-hexane as that which is being measured using Method 1664 and that the common name “oil and grease” is
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